Physics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie..999..216s&link_type=abstract
IN: Laser radar III; Proceedings of the Meeting, Boston, MA, Sept. 6, 7, 1988 (A90-11226 01-36). Bellingham, WA, Society of Phot
Physics
Autodynes, Doppler Effect, Homodyne Reception, Optical Heterodyning, Target Acquisition, Autocorrelation, Fast Fourier Transformations, Frequency Shift, Mercury Cadmium Tellurides, Rotating Bodies
Scientific paper
Time-varying Doppler-derived autodyne signatures of rotating targets are examined. It is shown that such signals may be related to the autocorrelation of the visible cross-range target scattering centers. When the target of interest may be represented by a sparse collection of localized scattering centers, application of reconstruction from projection routines to a set of autodyne signatures obtained over a wide angular extent results in an estimate of the autocorrelation function of the target. In the more general case in which target shadowing effects are significant, the methods may be used to define the maximum linear extents of the targets. These basic principles are verified using both simulated and experimental data for simple, nonretroreflective targets.
Reiley Michael F.
Schultz K. I.
Swezey L. W.
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